Comment by Malestryx

This is a pretty solid trinket. The build up to max stacks doesn't take long. The raw Agility or Strength gain is better them most trinkets that roll one stat. And you can gain more Critical Strike then those trinkets.

Comment by Uzunov

I dont know if the trinket is up to date here. But ingame 860 version of it, it gives you 140 Crit per stack not like 197 Tooltip here says.

Comment by trepex

Solid crit trinket. It takes about 9 seconds to build up the stack to 10.

The stack is only lost when you start auto attacking another target so on cleave fights you can keep the stack up by using mouse over macros. For instance as a feral druid casting Rake: